package com.example.demo.utils;

import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTVerifier;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.Claim;
import com.auth0.jwt.interfaces.DecodedJWT;
import org.junit.Test;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

public class JwtUtil {

    private static final String Key = "ganfan";

    public static String genToken(Map<String, Object> claims) {
        return JWT.create()
                .withClaim("claims", claims)
                .withExpiresAt(new Date(System.currentTimeMillis() + 1000*60*60*12))
                .sign(Algorithm.HMAC256(Key));

        }


        public static Map<String,Object> parseToken(String token) {
            return JWT.require(Algorithm.HMAC256(Key))
                    .build()
                    .verify(token)
                    .getClaim("claims")
                    .asMap();
        }

    }


